Screen



March 27, 1934.4 V, LUDwlCK 1,953,000 y SCREEN Filed Aug. 16, 1953 WITNESS INVENTOR Vncen/' Encima/i1 M MQMJW/mw/ ATTORNEY Patented Mar. 27, 1934 UNITED f STATES PATENTy OFFICE This invention relates to improvements in adjustable Ventilating or window screens.

The principal object of the invention is the provision of a screen which will be adjustable to t in window frames of various sizes or widths, and which has means for retaining the screen in place and also to prevent it from rattling.

Another object of the invention is to provide a screen of the indicated character having means to retain the adjustable sections in non-extended positions, so as to reduce the size of the screen to a minimum in order that it will occupy a coinparatively small space when not in use orwhile quantities of the screens are being shipped,

The invention consists in the improved features as hereinafter described and claimed, and as illustrated in the accompanying drawing, in which Figure l is a view illustrating a screen embodying the invention in use; Y

Figure 2 is a section taken on the line 2/2 of Figure 1 Figure 3 is a view of the screen detached and the sections thereof being held in non-extended positions;

Figure 4 is an enlarged section taken on the line 4/4 of Figure 3.

Referring now more particularly to the several views of the drawing, it will be apparent that there is shown a screen useful for Ventilating purposes in conjunction with a window. The screen consists of two substantially similar sections 10 which are adjustable or slidable with respect to each other, to vary the size of the screen so that it will t in window frames oi various sizes. The sections 10 are held together for adjustment with respect to each other by means 1l associated with the top and bottom frame members of the sections 10. The means l1 consists of a dovetail key secured in a corresponding groove in the frame member of one section l0, and which is slidable in a corresponding groove in the adjacent frame member of the other section 10. The screen having the features mentioned is of the conventional type to which the present invention is applied, and it is to be understood that the invention may be applied to any screen having sections which are adjustable with respect to each other to various positions to vary the size of the screen.

In accordance With the invention, use is made of resilient means constantly acting on the sections 10 for yieldingly retaining them in various adjusted positions with respect to each other so that the screen will fit and be held in place in window frames or the like of various sizes. The

said means consists of companion spring members 12, each of which is constructed of resilient material, such as stout spring Wire.

Each of the members 12 has a longitudinally bowed portion 13 between end portions 14. TheV spring members 12 are arranged horizontally, one above the other, and the adjacent terminals of the end portions 14 are disposed in holes in the vertical frame members respectively of the screen sections, as at 15. The terminals of the spring members 12 are preferably permanently secured to the frame members of the screen sections to insure against accidental displacementV of the spring members, although the terminals may be removably inserted in the holes in the said frame members.

VThe force oi the spring members 12 is adjustable by sleeves or rings 16 which are slidable on the spring members 12 between the bowed portions 13 and the extremities of said members 12. The sleeves 16 may be moved to various adjusted positions in order to vary or change the curvatures of the bowed portions 13, and thus incidentally vary the adjusting and holding force or action of the spring members 12.

From the foregoing it will be apparent that the spring members 12 exert an outward force in opposite directions on the sections 10 to yieldingly retain them in various adjusted or extended relations to bear against the side stiles of a window frame 17, as shown in Figures l and 2. The screen will be rmly held in place and also will be prevented from rattling Vwhile in place. It will be apparent that the screen is useful in conjunction with a window having sliding sashes, the lower one of which will be raised in order that the screen may be put in place to provide for the desired ventilation. The sections 10 of the screen may be readily adjusted with respect to each other against action of the spring members 12 for the purpose of removing the screen.

One of the sections 10 of the screen has secured thereto suitablecatches 18, each consisting of a flat piece of spring metal. The catches 18 have holes 19 which receive pins 20 respectively on the other section 10 to hold the sections 10 in nonextended positions to reduce the size of the screen to a minimum, as shown in Figure 3. The screen will then occupy comparatively small space when not in use, and when large quantities of screens embodying the invention are being shipped they will occupy comparatively small space.

I claim:

1. A Window screen comprising sections adjustable with respect to each other to vary the size of the screen, and means constantly acting on said sections to adjust them with respect to each other, so that the screen will fit and be held in place in frame structures of various sizes, said means consisting of companion spring members, each constructed of resilient material, and having a longitudinally bowed portion between its ends, and the adjacent ends or said members engaging said sections respectively. 2. A Window screen comprising sections adjustable with respect to each other to vary the size of the screen, means constantly acting on said:

sections to adjust them with respect to each other, so that the screen will t and be, heldin place in frame structures of various sizes,` "said means consisting of companion spring-V members, each constructed of resilient material, and having a longitudinally bowed portion between its ends, the adjacent ends of said members engaging said sections-respectively, and means to vary the adjusting and holding force of saidV spring members.

3. A window screen comprising sections adjustable with respect to each other to vary the size of the screen, means constantly acting on said sections to adjust them with respect t0 each other, so that the screen will t and be held in place in frame structures of various sizes, said means consisting of companion. spring members, each constructed of resilient material, and having a longitudinally bowed portion between its ends, the adjacent ends of said members engaging said sections respectively, and means slidable on said spring members to change the curvatures of the bowed portions, to vary the adjusting and holding force of said spring members.

4. A window screen comprisingsections adjustable with respect to each other to vary the size of the screen, means constantly acting on said sections to adjust them with respect to each other, so that the screen will t and be held in place in frame structures of various sizes, said means consisting of companion spring members, each constructed of resilient material, and having a longitudinally bowed portion between its ends, theA adjacent ends of said members engaging said sections respectively, and; slides' embracing the springV members between the bowed portions and their ends, said slides being movable to various positions to change the curvatures of the bowed portions, to vary the action of said spring members.

5i A1 window screen comprising sections slidable withrespect toleach other to vary the width of the screen, and means constantly acting on saidisections to adjust them with respect to each other, so that the screen will t and be held in place-in frame structures of= various sizes, said means consisting of companionv springy members, each constructed of resilient material, an'dhaving a longitudinally'bowed portion* between its ends,

and the adjacent endsof said membersengaging' l' 0 said sections respectively.

6. A- window screen comprising sections adjustable with respect to each other tovvary'the size of the screen, and-a spring member constructed; of a'- singlepieceofl resilient material and bowedl longitudinally between its ends; and said endsr engaging said-y sections respectively, said springl member acting to extendsaid-sections relatively` to each other to rmly retain the screen in place` ina frame structure.

VINCENT LUDWICK.

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